A ship LORA same-frequency multi-antenna communication device based on U-shaped groove fixed aluminum plate

Abstract

The utility model relates to ship communication technical field, and disclose a kind of ship LORA same frequency multi-antenna communication device based on U-shaped groove fixed aluminum plate, comprising: antenna system: contain four antennas, namely Ant1, Ant2, Ant3, Ant4, each antenna is connected with N head, for signal reception and sending, respectively for Ant1 connects N head, Ant2 connects N head, Ant3 connects N head, Ant4 connects N head;Fixing and supporting system: including the fixing support for fixing antenna.The utility model adopts the structural mode of U-shaped groove fixed aluminum plate, realizes same frequency band multi-antenna communication.This design ensures the stable connection between antennas, effectively reduces the antenna displacement caused by ship sway or vibration, thereby greatly improve the efficiency and reliability of marine communication.U-shaped groove fixed aluminum plate not only provides stable support for antenna, but also through its special structure, ensures the stable work of antenna under severe sea conditions, reduces the risk of communication interruption or quality decline.

Description

Technical Field

[0001] This utility model relates to the field of marine communication technology, specifically to a marine LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate. Through its unique structural design, the device achieves efficient, stable and reliable marine communication, and is particularly suitable for the LORA multi-antenna communication needs of marine mobile platforms such as ships. Background Technology

[0002] With the rapid development of the marine economy, the demand for maritime communication is increasing. As the main carriers of maritime activities, the performance and stability of the communication equipment of ships are crucial. However, traditional maritime communication equipment often suffers from problems such as unreasonable antenna layout, low communication efficiency, and poor stability, making it difficult to meet the high requirements of modern maritime communication.

[0003] In existing technologies, most maritime communication equipment uses a fixed structure to achieve communication. However, these solutions often do not adequately consider the issues of stable antenna connection and co-frequency communication. Especially on mobile platforms such as ships at sea, due to the complex and changeable environment, antennas are easily affected by factors such as wind, waves, and vibration, leading to a decline in communication quality or even interruption.

[0004] To address the aforementioned issues, this invention proposes a shipboard LORA (Location-Oriented Assist) multi-antenna communication device based on a U-shaped groove fixed aluminum plate. Through its unique structural design, this device achieves multi-antenna communication in the same frequency band, improving the efficiency and reliability of maritime communication while ensuring antenna stability and consistency, thus providing a new solution for maritime communication. Utility Model Content

[0005] The purpose of this invention is to provide a ship LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate, which solves the technical problems of unreasonable antenna layout, low communication efficiency and poor stability of marine communication equipment, and achieves efficient, stable and reliable communication effect, thereby improving the communication capability of ships in complex sea conditions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shipborne LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate, characterized in that it comprises:

[0007] Antenna system: It contains four antennas, namely Ant1, Ant2, Ant3, and Ant4. Each antenna is connected to N connectors for signal reception and transmission. Ant1 is connected to N connectors, Ant2 is connected to N connectors, Ant3 is connected to N connectors, and Ant4 is connected to N connectors.

[0008] Fixing and Support System: Includes mounting brackets for fixing the antennas, specifically mounting brackets for Ant1 and Ant3, and mounting brackets for Ant2 and Ant4; a U-shaped slot aluminum plate, which is fixed to the SUS316 mounting base A via connecting slots, for fixing the antenna radiating elements and enabling multi-antenna communication on the same frequency; an SUS316 N-type connector for connecting the antenna and cable; and fiberglass tubing and an SUS16 U-shaped mounting plate, which are fixed with 708 waterproof silicone and connected to the SUS16 U-shaped mounting plate, providing stable support and protection for the entire device;

[0009] Circuit and signal processing system: Includes two PCBs, namely Ant1 and Ant3 PCBs and Ant2 and Ant4 PCBs, which are fixed to a U-shaped groove mounting aluminum plate by mounting brackets for Ant1 and Ant3, mounting brackets for Ant2 and Ant4, and plastic screws; two coils, namely the coils for Ant1 and Ant3 and the coils for Ant2 and Ant4, are soldered to the corresponding PCBs for Ant1 and Ant3 and Ant2 and Ant4, respectively; and a low-voltage ceramic capacitor, soldered to the ground of the PCBs for Ant2 and Ant4, for impedance adjustment;

[0010] Connection and fixing components: including cable wires for connecting the antenna and the PCB board, fixing adhesive for fixing the cable wires, soldering wires for soldering the coil and the PCB board, and plastic rods and plastic screws for fixing and supporting the PCB board.

[0011] Waterproof and sealing components: including 708 waterproof silicone for securing fiberglass tubing and SUS16 mounting bracket B;

[0012] Additional fixing components: including SUS16 fixing screws, used to fix the SUS16 U-shaped fixing plate to SUS316 fixing base A and SUS16 fixing base B respectively.

[0013] Preferably, the antenna system transmits signals in the following manner:

[0014] Ant1, Ant2, Ant3, and Ant4 are connected to the PCB boards of Ant1 and Ant3, and Ant2 and Ant4 respectively via cable lines to achieve signal transmission.

[0015] The antenna radiating element is fixed by a U-shaped groove structure to fix the aluminum plate, enabling multi-antenna communication in the same frequency band.

[0016] The U-shaped groove structure for fixing the aluminum plate arranges the cable wires and attaches them to the aluminum plate, ensuring consistent stability of Ant1, Ant2, Ant3, and Ant4.

[0017] The PCB boards of Ant1 and Ant3 are fixed at a 90-degree angle, and the coils of Ant2 and Ant4 are soldered at a 90-degree angle to improve the isolation between the antennas.

[0018] Impedance adjustment is achieved by using low-voltage ceramic capacitors to ensure the stability and consistency of signal transmission.

[0019] Preferably, the fixing and support system provides stable support in the following ways:

[0020] SUS316 Mount A provides a basic support for the antenna and the U-shaped slot mounting aluminum plate;

[0021] The U-shaped slot fixing aluminum plate is firmly fixed to the SUS316 mounting base A through the connecting slot, ensuring the stability of the antenna radiation unit;

[0022] The fiberglass tube is inserted into the SUS316 mounting base A and fixed with 708 waterproof silicone to provide additional support and protection for the device.

[0023] The SUS16 U-shaped fixing plate is fixed to the SUS316 fixing seat A and SUS16 fixing seat B with SUS16 fixing screws, which further enhances the stability of the device.

[0024] Preferably, the circuit and signal processing system process signals in the following manner:

[0025] The PCB boards of Ant1 and Ant3, and Ant2 and Ant4 serve as the core components for signal processing, receiving signals from antennas Ant1, Ant2, Ant3, and Ant4, and performing necessary processing.

[0026] The coils of Ant2 and Ant4, and the coils of Ant1 and Ant3 are soldered onto the PCB boards of Ant1 and Ant3, and Ant2 and Ant4, to participate in the signal processing and transmission process.

[0027] Low-voltage ceramic capacitors are soldered to the ground plane of the Ant2 and Ant4 PCBs, and the signal transmission quality is optimized by adjusting the impedance.

[0028] Preferably, the connection and fixing elements ensure the stability of the device in the following ways:

[0029] The cable is securely fixed to the U-shaped groove aluminum plate with adhesive to ensure the stability of signal transmission.

[0030] The mounting brackets for Ant1 and Ant3, the mounting brackets for Ant2 and Ant4, and the plastic screws securely fix the PCB boards of Ant1 and Ant3, and the PCB boards of Ant2 and Ant4 to the U-shaped groove mounting aluminum plate to prevent them from loosening or falling off.

[0031] The soldering wires securely solder the coils of Ant2 and Ant4, and the coils of Ant1 and Ant3, to the PCBs of Ant1 and Ant3, and Ant2 and Ant4, ensuring the continuity of signal transmission.

[0032] Preferably, the waterproofing and sealing element provides waterproof protection in the following ways:

[0033] 708 waterproof silicone is used to fix fiberglass tubes and SUS16 mounting base B to prevent moisture from entering the device.

[0034] 708 waterproof silicone is also used at the connection between the SUS316 mounting bracket A and the fiberglass tube to ensure the waterproof performance of the device.

[0035] Preferably, the additional fixing element enhances the stability of the device in the following ways:

[0036] The SUS16 fixing screws securely fasten the SUS16 U-shaped fixing plate to the SUS316 fixing seat A and SUS16 fixing seat B, enhancing the overall stability of the device.

[0037] SUS16 mounting screws are also used to secure other components, such as the PCB boards of Ant1 and Ant3, and the connection between the PCB boards of Ant2 and Ant4 and the U-shaped groove mounting aluminum plate, ensuring stable operation of the device in harsh environments.

[0038] This invention provides a shipboard LORA (Location-Oriented Relay) multi-antenna communication device based on a U-shaped groove fixed aluminum plate. It has the following advantages:

[0039] (1) This utility model adopts a U-shaped groove fixing aluminum plate structure to realize multi-antenna communication in the same frequency band. This design ensures stable connection between antennas and effectively reduces antenna displacement caused by ship swaying or vibration, thereby greatly improving the efficiency and reliability of maritime communication. The U-shaped groove fixing aluminum plate not only provides a solid support for the antenna, but also ensures stable operation of the antenna under harsh sea conditions through its special structural form, reducing the risk of communication interruption or quality degradation.

[0040] (2) This utility model uses a U-shaped groove to fix the aluminum plate, which arranges the cable wires in an orderly manner and tightly adheres them to the aluminum plate. This design effectively ensures the stability and consistency of the four antennas (Ant1, Ant2, Ant3, Ant4), reduces signal interference and attenuation, and thus significantly improves communication quality. In addition, by fixing and soldering the antenna PCB board and coil at a 90-degree angle, the isolation between the antennas is further improved, effectively reducing mutual interference between antennas and ensuring signal clarity and accuracy.

[0041] (3) This utility model significantly improves the gain and efficiency of the antenna by optimizing the antenna layout and connection method. Performance data shows that all four antennas exhibit good gain and efficiency at different frequencies, which means that the signal can be transmitted farther and clearer, thereby effectively expanding the communication range and improving signal reception sensitivity. The enhanced antenna performance not only improves communication quality but also provides more reliable communication support for ships operating at sea, helping to improve operational efficiency and safety.

[0042] (4) This utility model adopts a modular design, with tight connections between components and easy disassembly. This design not only simplifies the installation process and reduces installation difficulty, but also facilitates subsequent debugging and maintenance. The U-shaped groove fixing aluminum plate structure also facilitates quick positioning and adjustment of the antenna, improving installation efficiency and reducing installation time and cost.

[0043] (5) This utility model uses waterproof silicone and other sealing materials to effectively protect key components, and has good waterproof, moisture-proof and salt spray resistance. This design ensures the stable operation of the device in harsh environments such as at sea, effectively extends the service life of the device, and reduces maintenance and replacement costs.

[0044] (6) This utility model significantly improves the overall performance of the ship's communication system by integrating multi-antenna communication technology at the same frequency. This not only enhances the communication capabilities between the ship and shore-based facilities, and between ships, but also provides more comprehensive and reliable communication support for ships operating at sea. The improved communication capabilities help ships better cope with the complex maritime environment, ensure operational safety, and improve operational efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the N-head connection structure for the four antennas Ant1, Ant2, Ant3, and Ant4 of this utility model;

[0046] Figure 2 This is a schematic diagram showing the connection between the U-shaped groove fixing aluminum plate and components such as the antenna and PCB board of this utility model;

[0047] Figure 3This is a schematic view showing the connection between the cable and components such as the PCB board of this utility model;

[0048] Figure 4 This is a schematic diagram of the structure of the ship LORA multi-antenna communication device based on U-shaped groove fixed aluminum plate according to this utility model;

[0049] Figure 5 This is a schematic view showing the connection between the plastic screw of this utility model and components such as PCB board and welding wire;

[0050] Figure 6 This is a structural view of the SUS16 fixing base B of this utility model;

[0051] Figure 7 This is a schematic view showing the connection between the SUS16 fixing screw, the fiberglass tube, and the SUS16 U-shaped fixing plate component of this utility model.

[0052] In the diagram: 1-Ant1 connects to the neutral connector, 2-Ant2 connects to the neutral connector, 3-Ant3 connects to the neutral connector, 4-Ant4 connects to the neutral connector, 5- Mounting brackets for Ant1 and Ant3, 6- Coils for Ant2 and Ant4, 7- Coils for Ant1 and Ant3, 8- Cable for Ant connections, 9- Low-voltage ceramic capacitor (15pF), 10- SUS316 mounting bracket A, 11- SUS316 neutral connector, 12- U-slot mounting aluminum plate, 13- Mounting brackets for Ant2 and Ant4, 14- PCB boards for Ant1 and Ant3, 15- PCB boards for Ant2 and Ant4, 16- Fixing adhesive, 17- Soldering wire, 18- Plastic rod supporting the PCB, 19- 708 waterproof silicone sealant, 20- Plastic screw, 21- SUS16 mounting bracket B, 22- Fiberglass tube, 23- SUS16 U-shaped fixing plate, 24-SUS16 fixing screws. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0055] Example 1:

[0056] Addressing the problems of unreasonable antenna layout, low communication efficiency, and poor stability in current maritime communication equipment, this utility model provides a preferred embodiment of a shipborne LORA (Local Response Area) multi-antenna communication device based on a U-shaped groove fixed aluminum plate, for example... Figure 1-7 As shown: A shipboard LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate, comprising:

[0057] Antenna system: It contains four antennas, namely Ant1, Ant2, Ant3 and Ant4. Each antenna is connected to N connectors for signal reception and transmission. Ant1 is connected to N connector 1, Ant2 is connected to N connector 2, Ant3 is connected to N connector 3 and Ant4 is connected to N connector 4 respectively.

[0058] Fixing and support system: including mounting brackets for fixing the antennas, specifically mounting brackets 5 for Ant1 and Ant3, and mounting brackets 13 for Ant2 and Ant4; a U-shaped groove fixing aluminum plate 12, which is fixed to the SUS316 mounting base A10 through a connecting slot, for fixing the antenna radiating element and realizing multi-antenna communication on the same frequency; an SUS316 N-type connector 11 for connecting the antenna and cable line 8; and fiberglass tube 22 and SUS16 U-shaped fixing plate 23, which are fixed by 708 waterproof silicone 19 and connected to the SUS16 U-shaped fixing plate 23, providing stable support and protection for the entire device;

[0059] The circuit and signal processing system includes two PCBs, namely PCB 14 for Ant1 and Ant3 and PCB 15 for Ant2 and Ant4, which are fixed to the U-shaped groove fixing aluminum plate 12 by fixing brackets 5 for Ant1 and Ant3, fixing brackets 13 for Ant2 and Ant4, and plastic screws 20; two coils, namely coil 7 for Ant1 and Ant3 and coil 6 for Ant2 and Ant4, are respectively soldered to the corresponding PCBs 14 for Ant1 and Ant3 and PCB 15 for Ant2 and Ant4; and a low-voltage ceramic capacitor 9, which is soldered to the ground of PCB 15 for Ant2 and Ant4 for impedance adjustment.

[0060] Connection and fixing components: including cable 8 for connecting the antenna and the PCB board, fixing adhesive 16 for fixing the cable 8, welding wire 17 for soldering the coil and the PCB board, and plastic rod 18 and plastic screw 20 for fixing and supporting the PCB board.

[0061] Waterproof and sealing components: including 708 waterproof silicone 19 for fixing fiberglass tube 22 and SUS16 mounting bracket B21;

[0062] Additional fixing components include SUS16 fixing screws 24, used to fix the SUS16 U-shaped fixing plate 23 to the SUS316 fixing base A10 and the SUS16 fixing base B21 respectively.

[0063] Example 2:

[0064] Please see Figures 1-7 Furthermore, based on Example 1, the following was obtained:

[0065] Antenna systems transmit signals in the following ways:

[0066] Ant1, Ant2, Ant3, and Ant4 are connected to the PCB boards 14 of Ant1 and Ant3, and the PCB boards 15 of Ant2 and Ant4 respectively via cable line 8 to achieve signal transmission.

[0067] The antenna radiating element is fixed by fixing the aluminum plate 12 with a U-shaped groove, so as to realize multi-antenna communication in the same frequency band.

[0068] The structure of the U-shaped groove fixing aluminum plate 12 arranges the cable lines 8 and attaches them to the aluminum plate to ensure the consistent stability of Ant1, Ant2, Ant3, and Ant4;

[0069] The PCB boards 14 of Ant1 and Ant3 are fixed at a 90-degree angle, and the coils 6 of Ant2 and Ant4 are soldered at a 90-degree angle to improve the isolation between the antennas.

[0070] Further findings show that impedance adjustment using low-voltage ceramic capacitor 9 ensures the stability and consistency of signal transmission.

[0071] The fixing and support system provides stable support in the following ways:

[0072] SUS316 mounting bracket A10 provides basic support for the antenna and U-slot mounting aluminum plate 12;

[0073] The U-shaped groove fixing aluminum plate 12 is firmly fixed to the SUS316 mounting base A10 through the connecting slot, ensuring the stability of the antenna radiation unit;

[0074] The fiberglass tube 22 is inserted into the SUS316 mounting base A10 and fixed with 708 waterproof silicone 19 to provide additional support and protection for the device.

[0075] The SUS16 U-shaped fixing plate 23 is fixed to the SUS316 fixing seat A10 and SUS16 fixing seat B21 by the SUS16 fixing screw 24, which further enhances the stability of the device.

[0076] Furthermore, it is found that circuits and signal processing systems process signals in the following ways:

[0077] The PCB boards 14 of Ant1 and Ant3, and the PCB boards 15 of Ant2 and Ant4 serve as the core components for signal processing, receiving signals from antennas Ant1, Ant2, Ant3, and Ant4, and performing necessary processing.

[0078] The coil 6 of Ant2 and Ant4, and the coil 7 of Ant1 and Ant3 are soldered onto the PCB board 14 of Ant1 and Ant3, and the PCB board 15 of Ant2 and Ant4, to participate in the signal processing and transmission process.

[0079] Low-voltage ceramic capacitor 9 is soldered to the ground of PCB board 15 of Ant2 and Ant4, and the signal transmission quality is optimized by adjusting the impedance.

[0080] Furthermore, the stability of the device is ensured by the following methods for connecting and fixing components:

[0081] The cable 8 is firmly fixed to the U-shaped groove fixing aluminum plate 12 by the fixing adhesive 16 to ensure the stability of signal transmission;

[0082] The fixing brackets 5 for Ant1 and Ant3, the fixing brackets 13 for Ant2 and Ant4, and the plastic screws 20 securely fix the PCB boards 14 for Ant1 and Ant3 and the PCB boards 15 for Ant2 and Ant4 to the U-shaped groove fixing aluminum plate 12 to prevent them from loosening or falling off.

[0083] Solder wire 17 securely solders coil 6 of Ant2 and Ant4, and coil 7 of Ant1 and Ant3 to PCB board 14 of Ant1 and Ant3, and PCB board 15 of Ant2 and Ant4, ensuring the continuity of signal transmission.

[0084] Furthermore, waterproofing and sealing elements provide waterproof protection in the following ways:

[0085] 708 waterproof silicone 19 is used to fix the fiberglass tube 22 and SUS16 mounting base B21 to prevent moisture from entering the device.

[0086] 708 waterproof silicone 19 is also used at the connection between the SUS316 mounting base A10 and the fiberglass tube 22 to ensure the waterproof performance of the device.

[0087] Furthermore, it was found that the additional fixing elements enhance the stability of the device in the following ways:

[0088] SUS16 fixing screws 24 securely fasten SUS16 U-shaped fixing plate 23 to SUS316 fixing seat A10 and SUS16 fixing seat B21, enhancing the overall stability of the device.

[0089] SUS16 fixing screws 24 are also used to fix other components, such as the connection between the PCB boards 14 of Ant1 and Ant3, the PCB boards 15 of Ant2 and Ant4 and the U-shaped groove fixing aluminum plate 12, to ensure stable operation of the device in harsh environments.

[0090] In use, first connect Ant1 and Ant3 to the cable line, and similarly connect Ant2 and Ant4 to the cable line 8. Then, use nuts to secure Ant1, Ant2, Ant3, and Ant4 to the SUS316 mounting bracket A. Next, use the connecting slots to fix the U-shaped groove fixing aluminum plate 12 to the SUS316 mounting bracket A, and route the cable line on the U-shaped groove fixing aluminum plate, securing it with adhesive.

[0091] Next, the PCBs for Ant1 and Ant3, and Ant2 and Ant4, are fixed to the U-shaped groove mounting aluminum plate using mounting brackets and plastic screws. The coils for Ant1 and Ant3, and the coils for Ant2 and Ant4 are soldered to their respective PCBs, and the other end of the cable is connected to the power supply point on the PCB.

[0092] Simultaneously, the fiberglass tube is inserted into the SUS316 mounting base A and secured with 708 waterproof silicone sealant. Then, plastic screws are assembled onto the other end of the fiberglass tube and secured with 708 waterproof silicone sealant. Finally, the SUS16 U-shaped mounting plate is fixed to the SUS316 mounting base A and the plastic screws using SUS16 fixing screws, providing stable support and protection for the entire device.

[0093] During signal transmission, the antenna radiating element is fixed using a U-shaped slot aluminum plate structure, enabling multi-antenna communication within the same frequency band. This U-shaped slot structure arranges the cable lines and attaches them to the aluminum plate, ensuring consistent antenna stability. Simultaneously, the PCB board and coil are fixed and soldered at a 90-degree angle, improving isolation between antennas and reducing interference. Furthermore, impedance adjustment using low-voltage ceramic capacitors ensures stable and consistent signal transmission.

[0094] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shipboard LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate, characterized in that, include: Antenna system: It contains four antennas, namely Ant1, Ant2, Ant3 and Ant4. Each antenna is connected to N heads for signal reception and transmission. Ant1 is connected to N heads (1), Ant2 is connected to N heads (2), Ant3 is connected to N heads (3), and Ant4 is connected to N heads (4). Fixing and support system: including fixing brackets for fixing antennas, specifically fixing brackets (5) for Ant1 and Ant3, and fixing brackets (13) for Ant2 and Ant4; a U-shaped groove fixing aluminum plate (12), which is fixed to the SUS316 fixing base A (10) by connecting slots, for fixing antenna radiating units and realizing multi-antenna communication at the same frequency; SUS316 N-type connector (11), for connecting antenna and cable line (8); and fiberglass tube (22) and SUS16 U-shaped fixing plate (23), which are fixed by 708 waterproof silicone (19) and connected to the SUS16 U-shaped fixing plate (23) to provide stable support and protection for the entire device; Circuit and signal processing system: includes two PCB boards, namely PCB boards (14) for Ant1 and Ant3 and PCB boards (15) for Ant2 and Ant4, which are fixed to a U-shaped groove fixing aluminum plate (12) by fixing brackets (5) for Ant1 and Ant3, fixing brackets (13) for Ant2 and Ant4 and plastic screws (20); two coils, namely coils (7) for Ant1 and Ant3 and coils (6) for Ant2 and Ant4, are respectively soldered to the corresponding PCB boards (14) for Ant1 and Ant3 and PCB boards (15) for Ant2 and Ant4; and a low-voltage ceramic capacitor (9) is soldered to the ground of PCB board (15) for Ant2 and Ant4 for impedance adjustment; Connection and fixing components: including cable wire (8) for connecting the antenna and the PCB board, fixing adhesive (16) for fixing the cable wire (8), welding wire (17) for welding the coil and the PCB board, and plastic rod (18) and plastic screw (20) for fixing and supporting the PCB board. Waterproof and sealing elements: including 708 waterproof silicone (19) for securing fiberglass tube (22) and SUS16 mounting base B (21); Additional fixing components include SUS16 fixing screws (24) for fixing the SUS16 U-shaped fixing plate (23) to the SUS316 fixing base A (10) and the SUS16 fixing base B (21) respectively.

2. The shipborne LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The antenna system transmits signals in the following manner: Ant1, Ant2, Ant3, and Ant4 are connected to the PCB boards (14) of Ant1 and Ant3 and the PCB boards (15) of Ant2 and Ant4 respectively via cable (8) to achieve signal transmission; The antenna radiating element is fixed by fixing the aluminum plate (12) with a U-shaped groove, so as to realize multi-antenna communication in the same frequency band; The structure of the U-shaped groove fixing aluminum plate (12) arranges the cable line (8) and attaches it to the aluminum plate to ensure the stability of Ant1, Ant2, Ant3 and Ant4 is consistent; The PCB boards (14) of Ant1 and Ant3 are fixed at a 90-degree angle, and the coils (6) of Ant2 and Ant4 are soldered at a 90-degree angle to improve the isolation between the antennas. The impedance is adjusted by using a low-voltage ceramic capacitor (9) to ensure the stability and consistency of signal transmission.

3. The shipborne LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The fixing and support system provides stable support in the following ways: The SUS316 mounting bracket A (10) provides a base support for the antenna and the U-shaped slot mounting aluminum plate (12); The U-shaped groove fixing aluminum plate (12) is firmly fixed to the SUS316 fixing base A (10) through the connecting slot to ensure the stability of the antenna radiation unit; The fiberglass tube (22) is inserted into the SUS316 mounting base A (10) and fixed with 708 waterproof silicone (19) to provide additional support and protection for the device; The SUS16 U-shaped fixing plate (23) is fixed to the SUS316 fixing seat A (10) and the SUS16 fixing seat B (21) by the SUS16 fixing screws (24), which further enhances the stability of the device.

4. The shipborne LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The circuit and signal processing system process signals in the following ways: The PCB boards (14) of Ant1 and Ant3 and the PCB boards (15) of Ant2 and Ant4 serve as the core components for signal processing, receiving signals from antennas Ant1, Ant2, Ant3 and Ant4 and performing necessary processing. The coils (6) of Ant2 and Ant4, and the coils (7) of Ant1 and Ant3 are soldered onto the PCB boards (14) of Ant1 and Ant3, and the PCB boards (15) of Ant2 and Ant4, to participate in the signal processing and transmission process. Low-voltage ceramic capacitors (9) are soldered to the ground of the PCB boards (15) of Ant2 and Ant4 to optimize signal transmission quality by adjusting impedance.

5. A shipboard LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The connection and fixing elements ensure the stability of the device in the following ways: The cable (8) is firmly fixed to the U-shaped groove fixing aluminum plate (12) by the fixing glue (16) to ensure the stability of signal transmission; The fixing brackets (5) for Ant1 and Ant3, the fixing brackets (13) for Ant2 and Ant4, and the plastic screws (20) securely fix the PCB boards (14) for Ant1 and Ant3 and the PCB boards (15) for Ant2 and Ant4 to the U-shaped groove fixing aluminum plate (12) to prevent them from loosening or falling off. The solder wire (17) firmly solders the coils (6) of Ant2 and Ant4, and the coils (7) of Ant1 and Ant3 to the PCB boards (14) of Ant1 and Ant3, and the PCB boards (15) of Ant2 and Ant4, ensuring the continuity of signal transmission.

6. The shipborne LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The waterproofing and sealing elements provide waterproof protection in the following ways: 708 waterproof silicone (19) is used to fix fiberglass tube (22) and SUS16 mounting base B (21) to prevent moisture from entering the device; 708 waterproof silicone (19) is also used at the connection between the SUS316 mounting base A (10) and the fiberglass tube (22) to ensure the waterproof performance of the device.

7. A shipboard LORA multi-antenna communication device based on a U-shaped groove fixed aluminum plate according to claim 1, characterized in that: The additional fixing element enhances the stability of the device in the following ways: The SUS16 fixing screw (24) securely fixes the SUS16 U-shaped fixing plate (23) to the SUS316 fixing seat A (10) and the SUS16 fixing seat B (21), thereby enhancing the overall stability of the device. The SUS16 fixing screws (24) are also used to fix other components, such as the connection between the PCB boards (14) of Ant1 and Ant3, the PCB boards (15) of Ant2 and Ant4 and the U-shaped groove fixing aluminum plate (12), to ensure the stable operation of the device in harsh environments.

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